geokov.com Shahram Yassemi · Google Fusion Tables Fusion Tables is a web application for...
Transcript of geokov.com Shahram Yassemi · Google Fusion Tables Fusion Tables is a web application for...
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http://geokov.com
Shahram Yassemi
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Exploration of the use of spatial data and maps for devising more engaging lesson plans
Introduction to a free interactive web mapping application
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More and more organizations (governmental, educational, non-profit) are making their data open and accessible to the public. Excellent potential for the use of such data in earth, and environmental science education.
Move towards open data
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Making use of spatial data software and applications
• Commercial GIS, remote sensing, CAD desktop software e.g. ArcGIS, MapInfo, Idrisi, ERDAS, Microstation, AutoCAD
• Open source, free desktop software
e.g. QGIS, MapWindow, GRASS, JOSM (editor for OSM) • Web mapping applications
e.g. ArcGIS server, Google Maps, Bing Maps, MapQuest, OpenStreet Map • 3D Earth web/desktop application
e.g. Google Earth (and Earth web plugin), NASA World Wind • GPS software
e.g. GPSBabel, EasyGPS, Garmin BaseCamp and HomePort (legacy MapSource)
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• No platform (operating system & hardware) dependence can access the application from anywhere with an internet connection and web browser
• Access to remote databases as well as real-time data facilitates efficient data and information dissemination, integration, and sharing
• No need for specialized GIS software application, database upgrades and debugging are done from a central location
• A user-friendly interface with only the essential tools / functionality no interaction with complex GIS software
• Facilitates communication and collaboration
Why an online platform?
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A free web application: • has extended Google Maps functionality through the use
of its application programming interface (API)
• strives to provide user-friendly mapping and visualization functionality and allow for the integration of geospatial data from various sources
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Server
Client
Google Maps API Javascript
Microsoft ASP.Net Visual Studio (VB.NET)
Client-Server Architecture
Google Maps API V2 V3
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Geokov Map Maker • Interactive map – familiar Google Maps environment • Different base maps; and ability to overlay data
• Tools for drawing on the map
• Data import and export
http://www.youtube.com/watch?v=vxnVvUxkTZM
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Topographic Maps Access seamless online topographic map as a base layer
or as an overlay in Geokov Overlay semi-opaque topo layer on top of Google Terrain
base layer for hill-shaded topo map Topo map exercises: identifying terrain features, map
scale, slope calculation, elevation profile
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Landforms and terrain features on 3D Earth
http://www.youtube.com/watch?v=EfDgTPWpMK4
A Virtual Field Trip
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GIS data
Two main data structures:
• Vector data – points, lines, polygons
• Raster data – grid of cells
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Examples of data types used in web mapping (and made accessible as open data)
• KML
• KMZ (zipped kml)
• GPX
• Google Fusion Tables
• Web Map Tile Service (WMTS)
• Web Map Service (WMS)
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KML KML (Keyhole Markup Languate) is an XML - based file format for
representing geographical data
KMZ: compressed KML file with .kmz extension
KML network link: contains a <Link> element with an <href> (a hypertext reference) that loads a file (.kml or .kmz extension)
KML Documentation https://developers.google.com/kml/documentation/
KML Tutorial https://developers.google.com/kml/documentation/kml_tut
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KML Examples AVO-RS/ARSC/UAF/GI Volcano Monitoring: http://ge.images.alaska.edu/ http://ge.images.alaska.edu/gvp_061202.kmz
Global Volcanism Program - Smithsonian Institute http://www.volcano.si.edu/products.cfm?p=9; http://www.volcano.si.edu/news/WeeklyVolcanoGE.kml
USGS WaterWatch: http://waterwatch.usgs.gov/, http://waterwatch.usgs.gov/kml.html http://water.usgs.gov/waterwatch/kmls/xreal.kmz
NOAA National Weather Service: http://www.srh.noaa.gov/gis/kml/ http://water.weather.gov/ahps/worldfiles/ahps_national_fcst.kmz
USGS Earthquake Hazards Program: http://earthquake.usgs.gov/learn/kml.php National Snow and Ice Data Center: http://nsidc.org/data/virtual_globes/ EPA Watershed Assessment, Tracking & Environmental Results System (WATERS) : http://water.epa.gov/scitech/datait/tools/waters/ http://water.epa.gov/scitech/datait/tools/waters/tools/waters_kmz.cfm Google Earth Blog: http://www.gearthblog.com/
Google Earth Library: http://www.gelib.com/site-index.htm
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NOAA National Severe Storms Laboratory: http://wdssii.nssl.noaa.gov/ NOAA National Weather Service:
http://search.usa.gov/search?v%3Aproject=firstgov&query=kml&affiliate=nws.noaa.gov
Food And Agriculture Organization of the UN: http://www.fao.org/search/en/?cx=018170620143701104933%3Aqq82jsfba7w&q=kml&x=13&y=12&cof=FORID%3A9&siteurl=www.fao.org%2Fnr%2Fgfims%2Fweb-mapping%2Fen%2F&ref=www.fao.org%2Fnr%2Fgfims%2Factive-fire-data%2Fkmlgoogle-earth%2Fen%2F&ss=
World Resources Institute: http://earthtrends.wri.org/search?s=kml&restrict=wri_all&op=Search
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GPX (GPS Exchange Format ) is an XML - based file format for interchange of GPS data between GPS devices, software and web services
GPX represents waypoints, routes and tracks, and stores
such information as location, elevation and time GPX Documentation
http://www.topografix.com/gpx.asp
GPX
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GPX Examples
Appalachian Trail Shelters: http://web.eecs.utk.edu/~dunigan/at/ http://web.eecs.utk.edu/~dunigan/at/shelters.gpx
RiverMaps: http://www.rivermaps.net/waypoints%20-%20download.html http://www.rivermaps.net/RiverMaps%20-%20Deso-Gray.gpx
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Google Fusion Tables Fusion Tables is a web application for visualizing,
gathering and sharing data. Data are stored in tables with similar functionality as
database tables. Find public data, import and share your data, merge your
data with other public data, export data, filter and visualize data in the form of charts and maps.
Fusion Tables Help
https://support.google.com/fusiontables/?hl=en#topic=1652595
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Fusion Tables Examples
Google Tables Search: http://research.google.com/tables - search: ‘geology’ Bedrock Geology of the Northeastern United States https://www.google.com/fusiontables/DataSource?docid=1yOHz2Qif5LfyuX0PSwbLWg4FugPpeweDXIJ2Gg Encrypted ID: 1yOHz2Qif5LfyuX0PSwbLWg4FugPpeweDXIJ2Gg
Natural Earth: http://www.naturalearthdata.com/
https://www.google.com/fusiontables/DataSource?docid=1UGwYogqtxVPga_76rxpL38CO1U6tr2s6Z0wSaQ
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WMTS is a standard protocol for serving pre-rendered map tiles of georeferenced spatial data.
WMTS intro from CubeWerx
http://www.cubewerx.com/technology/wmts/ OGC OpenGIS Web Map Tile Service Implementation Standard
http://www.cubewerx.com/technology/wmts/
Web Map Tile Service (WMTS)
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WMTS Examples http://mc.bbbike.org/mc/ http://mc.bbbike.org/mc/?num=2&mt0=mapnik&mt1=mapquest-eu List of OpenStreetMap Based Services http://wiki.openstreetmap.org/wiki/List_of_OSM_based_Services OSM mapping projects: http://wiki.openstreetmap.org/wiki/Mapping_projects
Environmental OSM: http://wiki.openstreetmap.org/wiki/Environmental_OSM The Humanitarian OpenStreetMap Team [H.O.T.] http://hot.openstreetmap.org/
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Web Map Service (WMS) WMS is a standard protocol for requesting one or more
georeferenced map images from geospatial databases. As opposed to WMTS’s pre-generated tile images, a new
image is created for each WMS request. A WMS request includes the geographic layer(s) and the area of interest.
OGC OpenGIS Web Map Service Implementation Standard
http://www.opengeospatial.org/standards/wms
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WMS Examples U.S.A National Atlas: http://nationalatlas.gov/infodocs/wms_intro.html National Snow and Ice Data Center: http://nsidc.org/data/atlas/ogc_services.html Pennsylvania Spatial Data Access (PASDA): http://www.pasda.psu.edu/ EPA Watershed Assessment, Tracking & Environmental Results System (WATERS) : http://water.epa.gov/scitech/datait/tools/waters/ http://water.epa.gov/scitech/datait/tools/waters/services/mapping_services.cfm
EarthAlerts: http://earthalerts.manyjourneys.com/web/#
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Printing the Map
http://geokov.com/mapping-help.aspx#printInfo Screen capture software (e.g. Jing): http://www.techsmith.com/jing.html
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Data storage / sharing, collaborative mapping Import KML to Google maps “My
places”
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Expand user base to utilize open data and communicate with maps
Conservation Group, Environmental Club
Field Worker / Researcher Silviculture Contractor
Park Ragner Conservation Officer
NGO (esp. developing
countries)
Geography, Earth and Environmental Science Teacher
Guide / Outfitter Backcountry traveler
Small Town Search & Rescue Volunteer
GIS software Mapping knowledge
Data file types projections/datums
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Other resources http://serc.carleton.edu/k12/maps.html http://serc.carleton.edu/teachearth/index.html http://www.iris.edu/hq/programs/education_and_outreach/animations http://www.unavco.org/edu_outreach/data-for-educators/data-for-educators.html